Email at info@guinnessandmathguy.com for queries.

To get your free eBook "How To Calculate Percentages In Your Head", please click the link below:

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To join our online course "Turn On The Calculator In Your Head (Basic)", please click the link below:

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Following courses will be launched soon:

1. Turn On The Calculator In Your Head (Intermediate)
2. Turn On The Calculator In Your Head (Advance)
3. Fractions, Decimals, Percentages
4. How To Become A Guinness World Record Holder Yourself
5. Abacus Basic (Addition & Subtraction)
6. Green Math (All Math topics from grade 3 to grade 10)

You can reach us at:

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Also, feel free to ask if you have any questions.

Ability to calculate in your head can build your confidence and improve your studies like no other skill. And when it does, you earn the opportunity to change lives. Master The Numbers. Help Your Class Fellows.

If you are a student of grade 6 to grade 10, this channel is particularly for you and for all others who want to be able to calculate in their heads? We help you master the numbers, play with them, manipulate them, calculate and handle big numbers in your head, and much more. Wonder what these skills can do to you?

- Boost your confidence.
- Show off. Become life of every gathering.
- Stop struggling in Math.
- Improve grades.
- Break calculations world records.
- Make you look like a genius.
- Most importantly, help others.

Join us!!!

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